diff --git a/docs/source/conf.py b/docs/source/conf.py
index e573521016..98ce0d3ec4 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -88,7 +88,7 @@ html_sidebars = {
 
 # sphinx-multiversion config
 
-smv_tag_whitelist = r""
+smv_tag_whitelist = r"^$"
 smv_branch_whitelist = r"^static-file-docs$"
 smv_outputdir_format = "versions" + sep + "{config.release}"